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53 lines
1.5 KiB
Plaintext
53 lines
1.5 KiB
Plaintext
--1 Conjunction: Coordination
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-- Coordination is defined for many different categories; here is
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-- a sample. The rules apply to *lists* of two or more elements,
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-- and define two general patterns:
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-- - ordinary conjunction: X,...X and X
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-- - distributed conjunction: both X,...,X and X
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--
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--
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-- $VP$ conjunctions are not covered here, because their applicability
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-- depends on language. Some special cases are defined in
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-- [``Extra`` ../abstract/Extra.gf].
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abstract Conjunction = Cat ** {
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--2 Rules
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fun
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ConjS : Conj -> [S] -> S ; -- "he walks and she runs"
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ConjAP : Conj -> [AP] -> AP ; -- "cold and warm"
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ConjNP : Conj -> [NP] -> NP ; -- "she or we"
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ConjAdv : Conj -> [Adv] -> Adv ; -- "here or there"
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---b DConjS : DConj -> [S] -> S ; -- "either he walks or she runs"
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---b DConjAP : DConj -> [AP] -> AP ; -- "both warm and cold"
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---b DConjNP : DConj -> [NP] -> NP ; -- "either he or she"
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---b DConjAdv : DConj -> [Adv] -> Adv; -- "both here and there"
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--2 Categories
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-- These categories are only used in this module.
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cat
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[S]{2} ;
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[Adv]{2} ;
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[NP]{2} ;
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[AP]{2} ;
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--2 List constructors
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-- The list constructors are derived from the list notation and therefore
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-- not given explicitly. But here are their type signatures:
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-- BaseC : C -> C -> [C] ; -- for C = S, AP, NP, Adv
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-- ConsC : C -> [C] -> [C] ;
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}
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--.
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-- *Note*. This module uses right-recursive lists. If backward
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-- compatibility with API 0.9 is needed, use
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-- [SeqConjunction SeqConjunction.html].
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